Honda Accord: DTC Troubleshooting - Immobilizer System - Body Electrical - Honda Accord MK8 2008-2012 Service ManualHonda Accord: DTC Troubleshooting

DTC U0155:

Immobilizer-keyless Control Unit Lost Communication With Gauge Control Module

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC U0155 Indicated? YES

-Do the gauge control module input test, and do all power, ground, and communication input tests (see page 22-347). If the tests prove OK, replace the gauge control module (see page 22-351 ) . NO

-lntermittent failure, the system is OK at this time.

Check for loose or poor connections at the gauge control module and the related u n i t s .

DTC U0199:

Immobilizer-keyless Control Unit Lost Communication With Door Multiplex Control Unit

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC U0199 indicated? YES

-Do the door multiplex control unit input test, and do all power, ground, and communication input tests (see page 22-292). If the tests prove OK, replace the power window master switch, 4-door (see page 22-305), 2-door (see page 22-306).

NO

-lntermittent failure, the system is OK at this time.

Check for loose or poor connections at the door multiplex control unit and the related u n i t s .

DTC U1282: i

mmobilizer-keyless Control Unit Lost Communication With Driver's MICU

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see page 22-134).

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

is DTC U1282 indicated? YES

-Do the driver's MICU input test, and do all power, ground, and communication input tests (see page z2-i51). if the tests prove OK, replace the driver's under-dash fuse/relay box, USA models (see page 22-86), Canada models (see page 22-87).

NO-

lntermittent failure, the system is OK at this time.

Check for loose or poor connections at driver's under-dash fuse/relay box connector P (20P) and the related units.

    Circuit Diagram
    ...

    Symptom Troubleshooting Information
    General Check Before Troubleshooting Before troubleshooting the immobilizer system, check the following general items and solve any if applicable: • The battery is low; charge the battery ful ...

    See also:

    Component Location Index
    '10 model ...

    Rear Door Outer Handle Replacement
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    Secondary Shaft Bearing Replacement
    Special Tools Required •Driver Handle, 15 x 135L 07749-0010000 •Attachment, 62 x 68 mm 07746-0010500 1. Remove the set plate bolt, then remove the lock washer (A) and the bearing set pla ...